115 lines
3.6 KiB
C++
115 lines
3.6 KiB
C++
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#ifndef BOOST_MPL_MULTISET_AUX_ITEM_HPP_INCLUDED
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#define BOOST_MPL_MULTISET_AUX_ITEM_HPP_INCLUDED
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// Copyright Aleksey Gurtovoy 2003-2004
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//
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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// See http://www.boost.org/libs/mpl for documentation.
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// $Id: item.hpp 49267 2008-10-11 06:19:02Z agurtovoy $
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// $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $
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// $Revision: 49267 $
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#include <boost/mpl/multiset/aux_/tag.hpp>
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#include <boost/mpl/int.hpp>
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#include <boost/mpl/aux_/type_wrapper.hpp>
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#include <boost/mpl/aux_/yes_no.hpp>
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#include <boost/mpl/aux_/value_wknd.hpp>
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#include <boost/mpl/aux_/static_cast.hpp>
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#include <boost/mpl/aux_/config/arrays.hpp>
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#include <boost/mpl/aux_/config/msvc.hpp>
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#include <boost/mpl/aux_/config/workaround.hpp>
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#if BOOST_WORKAROUND(BOOST_MSVC, <= 1300)
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# include <boost/mpl/eval_if.hpp>
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# include <boost/mpl/next.hpp>
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# include <boost/type_traits/is_same.hpp>
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#endif
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namespace boost { namespace mpl {
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#if BOOST_WORKAROUND(BOOST_MSVC, <= 1300)
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template< typename T, typename Base >
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struct ms_item
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{
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typedef aux::multiset_tag tag;
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template< typename U > struct prior_count
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{
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enum { msvc70_wknd_ = sizeof(Base::key_count(BOOST_MPL_AUX_STATIC_CAST(U*,0))) };
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typedef int_< msvc70_wknd_ > count_;
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typedef typename eval_if< is_same<T,U>, next<count_>, count_ >::type c_;
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#if defined(BOOST_MPL_CFG_NO_DEPENDENT_ARRAY_TYPES)
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typedef typename aux::weighted_tag<BOOST_MPL_AUX_MSVC_VALUE_WKND(c_)::value>::type type;
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#else
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typedef char (&type)[BOOST_MPL_AUX_MSVC_VALUE_WKND(c_)::value];
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#endif
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};
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template< typename U > struct prior_ref_count
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{
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typedef U (* u_)();
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enum { msvc70_wknd_ = sizeof(Base::ref_key_count(BOOST_MPL_AUX_STATIC_CAST(u_,0))) };
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typedef int_< msvc70_wknd_ > count_;
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typedef typename eval_if< is_same<T,U>, next<count_>, count_ >::type c_;
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#if defined(BOOST_MPL_CFG_NO_DEPENDENT_ARRAY_TYPES)
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typedef typename aux::weighted_tag<BOOST_MPL_AUX_MSVC_VALUE_WKND(c_)::value>::type type;
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#else
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typedef char (&type)[BOOST_MPL_AUX_MSVC_VALUE_WKND(c_)::value];
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#endif
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};
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template< typename U >
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static typename prior_count<U>::type key_count(U*);
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template< typename U >
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static typename prior_ref_count<U>::type ref_key_count(U (*)());
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};
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#else // BOOST_WORKAROUND(BOOST_MSVC, <= 1300)
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namespace aux {
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template< typename U, typename Base >
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struct prior_key_count
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{
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enum { msvc71_wknd_ = sizeof(Base::key_count(BOOST_MPL_AUX_STATIC_CAST(aux::type_wrapper<U>*,0))) };
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typedef int_< msvc71_wknd_ > count_;
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#if defined(BOOST_MPL_CFG_NO_DEPENDENT_ARRAY_TYPES)
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typedef typename aux::weighted_tag< BOOST_MPL_AUX_VALUE_WKND(count_)::value >::type type;
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#else
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typedef char (&type)[count_::value];
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#endif
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};
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}
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template< typename T, typename Base >
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struct ms_item
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{
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typedef aux::multiset_tag tag;
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enum { msvc71_wknd_ = sizeof(Base::key_count(BOOST_MPL_AUX_STATIC_CAST(aux::type_wrapper<T>*,0))) + 1 };
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typedef int_< msvc71_wknd_ > count_;
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#if defined(BOOST_MPL_CFG_NO_DEPENDENT_ARRAY_TYPES)
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static
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typename aux::weighted_tag< BOOST_MPL_AUX_VALUE_WKND(count_)::value >::type
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key_count(aux::type_wrapper<T>*);
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#else
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static char (& key_count(aux::type_wrapper<T>*) )[count_::value];
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#endif
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template< typename U >
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static typename aux::prior_key_count<U,Base>::type key_count(aux::type_wrapper<U>*);
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};
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#endif // BOOST_WORKAROUND(BOOST_MSVC, <= 1300)
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}}
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#endif // BOOST_MPL_MULTISET_AUX_ITEM_HPP_INCLUDED
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